Can someone please check my work?

Last Saturday different people did different things. Explain what each one did by completing the sentences with the appropriate "passé composé" forms of the verbs in the list. Be logical.

acheter
assister
ranger
laver
nettoyer
rencontrer
travailler
visiter

1. Ma cousine (a nettoyé) sa chambre.

2. Nous (avons assisté) à un match de foot.

3. Les touristes (ont visité) le musée d'Art Moderne.

4. Pierre et Sébastien (ont lavé) leur voiture.

5. (J'ai rencontré) mes copains au café.

6. Tu (.....) ta chambre.

7. vous (avez travaillé) dans le jardin.

8. Catherine (.....) des vetements au centre commercial.

I can't get #6 and #8. I might have put some in the wrong spots. Please help me.
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Say whether or not you did the following things last weekend.

Play table tennis:
1. Non, je n'ai pas joué tennis de table.

Play volleyball:
2. Non, je n'ai pas joué au volleyball.

Talk on the phone:
3. Oui, j'ai parlé sur le téléphone.

Watch TV:
4. Oui, j'ai regardé la télé.

Sing:
5. Non, je n'ai pas chanté.

Work:
6. Non, je n'ai pas travaillé.
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Is my work correct? If not, please correct me.

Merci Beaucoup!

It doesn't say you can only use each of the 8 choices once? If the "ranger" were "arranger" you could use it where you used "nettoyé"

#6. Tu as nettoyé
#8. a lavé

1. Non, je n'ai pas joué tennis de table. (Is there a tendency to no longer say "Non, je n'ai pas joué au tennis de table?"

Sra (aka Mme)

Let's go through each question and see if your answers are correct:

1. Ma cousine a nettoyé sa chambre.
Your answer is correct. You have used the appropriate passé composé form of the verb "nettoyer."

2. Nous avons assisté à un match de foot.
Your answer is correct. You have used the appropriate passé composé form of the verb "assister."

3. Les touristes ont visité le musée d'Art Moderne.
Your answer is correct. You have used the appropriate passé composé form of the verb "visiter."

4. Pierre et Sébastien ont lavé leur voiture.
Your answer is correct. You have used the appropriate passé composé form of the verb "laver."

5. J'ai rencontré mes copains au café.
Your answer is correct. You have used the appropriate passé composé form of the verb "rencontrer."

6. Tu n'as pas rangé ta chambre.
The correct form of the passé composé for the verb "ranger" when using the "tu" subject pronoun is "as rangé." Therefore, the sentence should be: Tu as rangé ta chambre.

7. Vous avez travaillé dans le jardin.
Your answer is correct. You have used the appropriate passé composé form of the verb "travailler."

8. Catherine a acheté des vêtements au centre commercial.
The correct form of the passé composé for the verb "acheter" is "a acheté." Therefore, the sentence should be: Catherine a acheté des vêtements au centre commercial.

Regarding the second set of questions, your answers are correct. You have correctly used the passé composé forms of the verbs.

So, to summarize, for the first set of questions, you had a mistake in #6 and #8. Additionally, for the second set of questions, all your answers were correct.

I hope this helps!